OS-2051 serial console login should set TERM appropriately

          --- old/root/.bashrc
          +++ new/root/.bashrc
   1    1  if [ "$PS1" ]; then
        2 +    mt_tty=$(/usr/bin/tty 2>/dev/null)
        3 +    if [[ $mt_tty =~ ^/dev/term/[abcd] ]]; then
        4 +        # If we're on the serial console, we generally won't know how
        5 +        # big our terminal is.  Attempt to ask it using control sequences
        6 +        # and resize our pty accordingly.
        7 +        mt_output=$(/usr/lib/measure_terminal 2>/dev/null)
        8 +        if [[ $? -eq 0 ]]; then
        9 +            eval "$mt_output"
       10 +        else
       11 +            # We could not read the size, but we should set a 'sane'
       12 +            # default as the dimensions of the previous user's terminal
       13 +            # persist on the tty device.
       14 +            export LINES=25
       15 +            export COLUMNS=80
       16 +        fi
       17 +        /usr/bin/stty rows ${LINES} columns ${COLUMNS} 2>/dev/null
       18 +    fi
       19 +    unset mt_output mt_tty
   2   20      shopt -s checkwinsize
   3   21      if [[ -f /.dcinfo ]]; then
   4   22          . /.dcinfo
   5   23          DC_NAME="${SDC_DATACENTER_NAME}"
   6   24          DC_HEADNODE_ID="${SDC_DATACENTER_HEADNODE_ID}"
   7   25      fi
   8   26      if [[ -n "${DC_NAME}" && -n "${DC_HEADNODE_ID}" ]]; then
   9   27         PS1="[\u@\h (${DC_NAME}:${DC_HEADNODE_ID}) \w]\\$ "
  10   28      elif [[ -n "${DC_NAME}" ]]; then
  11   29         PS1="[\u@\h (${DC_NAME}) \w]\\$ "

  12   30      else
  13   31         PS1="[\u@\h \w]\\$ "
  14   32      fi
  15   33      alias ll='ls -lF'
  16   34      [ -n "${SSH_CLIENT}" ] && export PROMPT_COMMAND='echo -ne "\033]0;${HOSTNAME} \007" && history -a'
  17   35  fi
  18   36  
  19   37  # Load bash completion
  20   38  [ -f /etc/bash/bash_completion ] && . /etc/bash/bash_completion
  21   39  
  22   40  if [ "${TERM}" == "screen" ]; then
  23   41      export TERM=xterm-color
  24   42  fi
  25   43  
  26   44  svclog() {
  27   45    if [[ -z "$PAGER" ]]; then
  28   46      PAGER=less
  29   47    fi
  30   48    $PAGER `svcs -L $1`
  31   49  }
  32   50  
  33   51  svclogf() {
  34   52    /usr/bin/tail -f `svcs -L $1`
  35   53  }

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